Sony CXD5602 User Manual page 302

Table SCU (Sensor Control Unit)-102 PWM Maximum and Minimum Setting Range
SCU Frequency Prescaler Setting
(representative
example)
13 MHz 1/1
1/128
8.192 MHz 1/1
1/128
32.768 kHz 1/1
1/128
3.9.11.2.1 PWM Cycle Calculation Formula
PWM cycle = UPWM_CYCLE/(SCU_CLK >> PWM_CNTENn)
When prescaler is set to 1/1 (PWM_CNTENn == 0)
UPWM_CYCLE = PWMn_CYCLE + 1
Restriction: PWMn_CYCLE > 0
When prescaler is set to 1/2 or higher (PWM_CNTENn >= 1)
UPWM_CYCLE = PWMn_CYCLE
Restriction: PWMn_CYCLE > 1
3.9.11.2.2 PWM Output Duty (High time/cycle) Calculation Formula
DUTY=1-(UPWM_THRESH/(UPWM_CYCLE))
When prescaler is set to 1/1 (PWM_CNTENn == 0)
UPWM_CYCLE = PWMn_CYCLE + 1
UPWM_THRESH = PWMn_THRESH
Restriction: PWMn_CYCLE>0, PWMn_CYCLE ≥ PWMn_THRESH
When prescaler is set to 1/2 or higher (PWM_CNTENn >= 1)
UPWM_CYCLE = PWMn_CYCLE << PWM_CNTENn
UPWM_THRESH = (PWMn_THRESH << PWM_CNTENn) -1
Restriction: PWMn_CYCLE > 1, PWMn_THRESH > 1, PWMn_CYCLE ≥ PWMn_THRESH
3.9.11.2.3 Special Settings (Fixed Output)

Setting to make PWM Output fixed status (control by each PWM)
fixed to High Level
PWMn_CYCLE "1" or higher
Output Variable Range (Setting Example)
Maximum Frequency
(Duty 50%)
6.5 MHz (154 ns)
50.7 kHz (19692 ns)
4.096 MHz (244 ns)
32 kHz (31250 ns)
16.384 kHz (61 μs)
128 Hz (7812.5 μs)
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Longest Cycle
396.7 Hz (2.521 ms)
3.099 Hz (322.6 ms)
250 Hz (4 ms)
1.953 Hz (512 ms)
1 Hz (1 s)
0.0078 Hz (128 s)
CXD5602 User Manual
Pulse Width Accuracy
76.9 ns/step
9846 ns/step
122 ns/step
15625 ns/step
30.5 μs/step
3906.25 μs/step